Improvement in lamps



E. D. RO SENCRA NTZ.

Vapor Burner.

Patented Dec. 24, 1861.

N- PETERS. Fholo-Liihogmphcr, Washington, D. C.

UNITED STATES PATENT OFFICE.

E. I). ROSENORANTZ, OF CINCINNATI, OHIO, ASSIGNOR TO HIMSELF, JOHN S. HULL, AND NELSON GATES, OF SAME PLACE.

IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 34,030, dated December 24,1861.

T0 ctZZ whom it may concern.-

Be it known that I, E. D. ROSENORANTZ, of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Vapor-Lamps; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, making a part of this specification.

In portable lamps for burning vapor there have been difficulties in supporting the rising column of fluid employed, and in most of them a wick has to be used. The supply being irregular, the light, as a consequence, must be also. By my improvements I overcome this difficulty by the employment, of the elastic action or spring of compressed air acting directly on the surface of the fluid-say coaloil-contained in the base of the lamp or reservoir, and thus it is made to ascend through a dip-tube connecting the point of ignition and reservoir in a perfectly controllable manner. There are other devicessuch as a flat burner and heater, (Km-which enable me to dispense with a chimney in burning such dense fluid as coal-oil, thus making those lamps more perfeet, which will be explained hereinafter.

To enable others to make and use lamps with my improvement, I would describe it as follows:

The lamp may be constructed of tin or other metal.

00 a: is the base forming the reservoir.

19 is the tube for filling the reservoir.

w w and w w is an air-pump for forcing air into the reservoir above the surface of the coal-oil or other fluid filling the air-space q q.

r is an escape-valve for the exit of air when desired; 20 w, the cranks, and w w the pistons of the pump; 0 o, a tube descending nearly to the bottom of the reservoir, connecting the lever chamber.

ff is an insulated tube for the ascent of the oil.

h h is the insulating material-via, plasterof-paris, burnt clay, or other suitable material. The upper end is closed by the valve-seat d.

a. a is the burner-tube and heat-conductor. The tube f f is filled with any suitable packlng, as metal sponge or asbestus.

b b are the wings (of an arched form) constitutin g the heater.

1) is the orifice or jet.

c is a fiat disk mounted with a crank-handle. It serves the purpose of a mingler of the gas and atmospheric air, and that of damper in regulating the flame.

a is the outer wall of the atmosphere-chamber,i t a continuation of the outer casing. It is perforated with a series of holes for the admission of the atmosphere, and being provided with shield 70 k, which is made to rise and fall on a screw-thread, those holes are opened or closed, as desired.

a is a hole or opening in the side of tube a, through which the atmospheric air is admitted and mingled with the eliminated gas.

6 is the needle-stock, rising and falling in the seat d. It carries the needle on its upper end, and thus forms a valve. It is actuated by the anglelcver n, in combination with the rod e and thumb-screw m.

There is a peculiarity in the heater, as shown in the drawings, Figures V and I, viz., instead of the arcs of metal rising parallel to each other they form a curved opening for the purpose of allowing the atmosphere to flow on the inner sides of said heaters and create a more perfect combustion.

The manner of using the lamp may be thus described: Having filled the reservoir 00 a: with coal-oil, the air-pump w to has a few strokes given it by the handle E, thus applying the pressure of air to the surface of the oil. It causes its ascent up the tube 0 0 until arrested by the valve-seat d and metal sponge in tube ff. Now, apply the heat of a lighterviz., metal sponge and alcohol-to the tube a a under the wings I) b, then open the valve by the withdrawal of the needle and stock (2 by a turn or two of the screw 'm, operating the angle-lever n and rod 6, attached to the needlestock 6. The atmosphere, entering through the holes in 1 i above the shield k 70, enters the opening co" and mingles with the gas of the coal-oil, which is inflamed and consumed at the fiat slit or opening at b of the burner. The admission of atmosphere necessarily depends on the gravity of the oil.

In the course of my experiments I have found that the corrosive properties of coal-oil on metal is best resisted by brass, and that as the conductive property of copper is superior to other metal that a combination of these two metals by having the brass as the inside of the burner and the copper as a plating for the outer surface that a desideratum is obtained. This may be'made the subject of a separate application.

Having described my improvements, what I claim as my invention, and desire to secure by Letters Patent, is

1. The employment of atmospheric pressure upon the surface of the fluid in the reservoir 00 w by means of the air-pump w w when used with the tubes 0 0 ff and'valve at d in a lamp, substantially as described.

E. D. ROSENORANTZ.

Witnesses:

JOHN F, CLARK, Emvr. F. BROWN. 

